Windows Firewall can't change settings, error 0x8007042c

I'm here, but it's getting a bit late for me ....

First: I would like you to clean all temporary files using TFC.

Download TFC by Old Timer TFC - Temp File Cleaner by OldTimer Download - Geeks to Go Forum and save it to your desktop.
Save any unsaved work. TFC will close ALL open programs including your browser! This will also eliminate all desktop shortcuts, so just be aware!
Double-click on TFC.exe to run it. If you are using Vista/Windows 7 right-click on the file and choose Run As Administrator.
Click the Start button to begin the cleaning process and let it run uninterrupted to completion.

Important! Manually reboot the machine to ensure a complete clean.

Next, flush the DNS cache and restore MS's Hosts file.
Copy and paste these lines in Note pad.

@Echo on
pushd\windows\system32\drivers\etc
attrib -h -s -r hosts
echo 127.0.0.1 localhost>HOSTS
attrib +r +h +s hosts
popd
ipconfig /release
ipconfig /renew
ipconfig /flushdns
netsh winsock reset all
netsh int ip reset all
shutdown -r -t 1
del %0

Save as flush.bat to your desktop.

Right click on the flush.bat file to run it as Administrator. Your computer will reboot itself.


Now, please download Junkware Removal Tool to your desktop.

• Shut down your protection software now to avoid potential conflicts.
• Run the tool by double-clicking it. If you are using Windows Vista, 7, or 8; instead of double-clicking, right-mouse click JRT.exe and select "Run as Administrator".
• The tool will open and start scanning your system.
• Please be patient as this can take a while to complete depending on your system's specifications.
• On completion, a log (JRT.txt) is saved to your desktop and will automatically open.
• Post the contents of JRT.txt into your next message.